Stabilizer for the treatment of the fracture of the neck and upp

Details Stabilizer for the treatment of the fracture of the neck and upp Stabilizer for the treatment of the fracture of the neck and upp

1987-12-15

1990-10-23

Apley, Richard J.

Surgery

Instruments

Orthopedic instrumentation

606 66, 606 73, A61F 504, A61B 1718

Patent

active

049644033

ABSTRACT:
A stabilizer for the treatment of the fractures of the neck and the upper metaphysis of the femur. The stabilizer plate 1 has a groove 2 in its bottom part and bent between tapered holes 3 passing into oval holes at their lower parts and tapered holes 4 passing into round holes at their lower part at an angle such that, after bone bolts 8 are secured in the porous bone fragments, the angle between them and plate 1 is approximately the same as that formed between the neck and shaft of the bone. The bolts 8 have a high pitch cortex thread 9 at the end of a cylindrical core, the latter having an enlarged part 12 on the opposite side and of the same width as that of groove 2 and terminating in a protruding shank 13 with a machine thread, while bolts 5 each have an enlarged disc-like part 7 disposed between the cortex and machine threads and having a width equal to that of groove 2, and conical-shaped nuts 14 are screwed on to protruding shanks 6 and 13.

REFERENCES:
patent: 1789060 (1931-01-01), Weisenbach
patent: 2406987 (1946-09-01), Anderson
patent: 2699774 (1955-01-01), Livingston
patent: 3094120 (1963-06-01), Blosser
patent: 3554193 (1971-01-01), Konstantinou et al.
patent: 4338926 (1982-07-01), Kummer et al.
patent: 4351069 (1982-09-01), Ballintyn et al.
patent: 4524765 (1985-06-01), de Zbikowski
patent: 4537185 (1985-08-01), Stednitz
"Rundloch-Winkelplatten", Osteo AG, p. 402, Selzach/Schweiz (1982).
"Stainless Steel for Hip Fixation", Zimmer, pp. c15 & c13, Great Britain (1975).
"OHS Kompressionshuftschraube", Osteo AG p. 2, Selzach/Schweiz (1982).
Parkhill's Clamp, Brickham's Operative Surgery, vol. 2, p. 364, 1924.

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